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Caryochroite & Elpidite

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CHP1156229

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Description
Locality: 
Umbozero Mine, Alluaiv Mountain, Lovozero, Murmansk Oblast, Russian Federation
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.8 × 1.7 × 1.2 cm
Description

specimen with rappresentative brownish massive crystalline caryochroite with colourless needles of elpidite.

c. B480

Mineral Data
What's on the rock

Caryochroite

Formula: 
(Na,Sr)3(Fe3+,Mg)10[(O,OH)9|Ti2Si12O37] ·(H2O,O,OH)17
Strunz: 
9.HA.65
Hardness: 
2.5 - 0.0
Type Locality: 
Umbozero mine (Umbozerskii mine; Umba Mine), Alluaiv Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia...

Elpidite

Formula: 
Na2ZrSi6O15·3H2O
Strunz: 
9.DG.65
Crystal System: 
Orthorhombic
Hardness: 
5.0

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30
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Start 20 Dec 18:00
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